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chapter 5 Flashcards

1
Q

What are autotrophs and heterotrophs

A

auto- A primary producer or a self feeder
het- an organism that gets their energy off of feeding from other things

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2
Q

what is photosynthesis

A

How plants make their own energy

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3
Q

What is the balanced equation for photosynthesis?

A

6CO2 + 6H20 = C6H12O6 + 6O2

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4
Q

What are two ways that
plants use carbohydrates made during photosynthesis?

A
  1. cellular respiration to make atp
  2. make cellulose
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5
Q

What is the electromagnetic spectrum?

A

the collection of all the different wavelengths of light.

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6
Q

what are photons

A

the particle of light

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7
Q

How does the wavelength of various forms of
radiation relate to their energy?

A

The shorter the wavelength the more energy and the longer the wavelength the less energy

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8
Q

What is the range in
wavelength (nm) of visible light?

A

400-700

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9
Q

what are photosynthetic pigments

A

pigments involved in photosynthesis

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10
Q

What colors do chlorophyll a, b, and carotenoids reflect?

A

A- green
b- lighter green
Carotenoids-yellow/orange

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11
Q

What occurs in mesophyll

A

photosynthesis

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12
Q

What are the two stages of photosynthesis?

A

light reactions and carbon reactions

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13
Q

What are the reactants and products of the light and carbon reactions?

A

Light= H2O (reactant) and O2 (product)
Carbon= CO2 (reactant) and Sugar (product)

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14
Q

What is a photosystem, and where are they found?

A

found in the thylakoid membrane and is a cluster of pigment molecules and proteins

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15
Q

What happens when light strikes an antenna
molecule?

A

the light is redirected to the reaction center

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16
Q

What is the function of a reaction center?

A

It gives up electrons to get them excited

17
Q

Why is water required in the light reactions?

A

because it replenishes the electrons that are lost to keep the reaction going

18
Q

In a non-cyclic pathway, where are excited electrons shuttled?

A

down the electron transport chain

19
Q

What work is accomplished as electrons are
moved through the electron transport chain?

A

the transport of hydrogen to make atp

20
Q

At the second photosystem (Photosystem I), what is required to reenergize the electron to produce NADPH?

A

more light

21
Q

How is ATP synthase involved in the production of ATP?

A

it synthesizes atp

bio (13 decks)

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